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Q.

Is it true that a fuse wire consists of an alloy of lead and tin because it has a very low melting point so, if a short circuit happens, the wire will melt and this will break the circuit ?

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a

True

b

False

answer is A.

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Detailed Solution

The above statement is [16]True.
A fuse wire consists of an alloy of lead and tin because it has a very low melting point so if a short circuit happens, the wire will melt and this will break the circuit.
We know that an electrical fuse is a circuit protection that safeguards electrical systems by destroying the connection whenever a short circuit occurs. Due to its strong resistance and low melting point, fuse wire is composed of

Sn

(tin) and

Pb

(lead) alloy. The tin and lead alloy is a eutectic composition of

62 %

tin and

38 %

lead that melts at

183^{o}

degrees Celsius.

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Is it true that a fuse wire consists of an alloy of lead and tin because it has a very low melting point so, if a short circuit happens, the wire will melt and this will break the circuit ?